Just for the people that despair of getting the IR Controller working, it's not implemented at this time.
After hours trying different things in different ways I decided to mail the dev of the driver:

Quote:

Hi there
May I contact you for help with my DVB-USB Dongle?
I found your contact details while playing with the dvb-usb-rtl28xxu.ko module on my 3.9.2-gentoo system.
I just want to ask you if it's possible to use the remote controler from the DVB-T stick. I tried some tests with evtest and irw on some /dev/input /event* interfaces but the stick seems not to receive any signal (remote controler is working/lightning through my digicam). I read some hints in forums to enable ir-feature by adding an option to the modprobe module. Do you have any information on that?

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Hi,
sorry for the late reply. When I implemented the driver I did not do any work on the IR part of the code, because the main goal was to be able to watch TV. So with the current driver it is not possible to use the IR. The original Realtek driver although has support for IR but it is quite hard to port the messy code into the mainline kernel.